Wearing material is intended for protection of isolation coating for pepelines with diameter ranging from 478 to 1420 mm. Inclusively from mechanical damage during installation and exploitation cast-iron and reinforced concrete densifiers of annular type. And also for anchor stretchers and also for quick fixes of pipe whip. The material constructed in climatic modification UHL as per GOST15150. WM is designed for exploitation at macro-climatic area with a moderate cold climate at temperatures from 60 below zero to 40 above zero. Life cycle as long as pipeline.
Physico-mechanical characteristics of material
Name indicator |
Unit |
Value |
Maximum | ||
of measure |
of the indicator |
deviations |
|||
Bulk density of the material |
g / cm3 |
1,0 |
at least |
||
|
Mass of absorbed water in relation to initial mass | % |
4 |
at the most |
|
Stability in aggressive environments | Importance of breaking load after restraint in aggressive environments in relation to initial value | % |
80 |
at least |
|
Electrical resistivity | Ohm |
108 |
at least |
||
Recoverability |
Value of compression load per unit area in 23±2 ос | MPa |
60 |
at least | |
Value of compression load per unit area at minus 40±2 ос |
60 |
at least | |||
Flexibility the whole FM (single construction) | flexibility in 20 ос |
– |
Absence of destruction | at least | |
flexibility at minus 40 ос | |||||
Impact resistance |
Impact resistance in 20 ос |
Joule |
50 |
at least |
|
Impact resistance at minus 40 ос |
The maintenance period FM – 5 years since manufacture
Service life FM – At least the service life of the pipeline